Dec 18 01:55:00.463 INFO checking daemanos/sudoku against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 01:55:00.463 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-5/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/daemanos/sudoku:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 01:55:00.802 INFO [stdout] 38c7a525ea871cf94952a8dbbfd7510ef3c80cceb128b5cba4e92e97027d2132
Dec 18 01:55:00.804 INFO running `"docker" "start" "-a" "38c7a525ea871cf94952a8dbbfd7510ef3c80cceb128b5cba4e92e97027d2132"`
Dec 18 01:55:02.652 INFO [stderr]     Checking sudoku v0.1.0 (/opt/crater/workdir)
Dec 18 01:55:02.876 INFO [stderr] warning: unused variable: `grid`
Dec 18 01:55:02.876 INFO [stderr]   --> src/main.rs:82:9
Dec 18 01:55:02.876 INFO [stderr]    |
Dec 18 01:55:02.876 INFO [stderr] 82 |     let grid = match read_grid(&path) {
Dec 18 01:55:02.876 INFO [stderr]    |         ^^^^ help: consider using `_grid` instead
Dec 18 01:55:02.876 INFO [stderr]    |
Dec 18 01:55:02.876 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 01:55:02.876 INFO [stderr] 
Dec 18 01:55:02.888 INFO [stderr] warning: field is never used: `fixed`
Dec 18 01:55:02.888 INFO [stderr]  --> src/main.rs:9:5
Dec 18 01:55:02.888 INFO [stderr]   |
Dec 18 01:55:02.888 INFO [stderr] 9 |     fixed: bool,
Dec 18 01:55:02.888 INFO [stderr]   |     ^^^^^^^^^^^
Dec 18 01:55:02.888 INFO [stderr]   |
Dec 18 01:55:02.888 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 18 01:55:02.888 INFO [stderr] 
Dec 18 01:55:02.888 INFO [stderr] warning: field is never used: `val`
Dec 18 01:55:02.888 INFO [stderr]   --> src/main.rs:10:5
Dec 18 01:55:02.888 INFO [stderr]    |
Dec 18 01:55:02.888 INFO [stderr] 10 |     val: i8,
Dec 18 01:55:02.888 INFO [stderr]    |     ^^^^^^^
Dec 18 01:55:02.888 INFO [stderr] 
Dec 18 01:55:02.888 INFO [stderr] warning: field is never used: `size`
Dec 18 01:55:02.888 INFO [stderr]   --> src/main.rs:14:5
Dec 18 01:55:02.888 INFO [stderr]    |
Dec 18 01:55:02.888 INFO [stderr] 14 |     size: i8,
Dec 18 01:55:02.888 INFO [stderr]    |     ^^^^^^^^
Dec 18 01:55:02.896 INFO [stderr] 
Dec 18 01:55:02.896 INFO [stderr] warning: field is never used: `block_size`
Dec 18 01:55:02.896 INFO [stderr]   --> src/main.rs:15:5
Dec 18 01:55:02.896 INFO [stderr]    |
Dec 18 01:55:02.896 INFO [stderr] 15 |     block_size: i8,
Dec 18 01:55:02.896 INFO [stderr]    |     ^^^^^^^^^^^^^^
Dec 18 01:55:02.896 INFO [stderr] 
Dec 18 01:55:02.896 INFO [stderr] warning: field is never used: `data`
Dec 18 01:55:02.896 INFO [stderr]   --> src/main.rs:16:5
Dec 18 01:55:02.896 INFO [stderr]    |
Dec 18 01:55:02.896 INFO [stderr] 16 |     data: Vec<Vec<Cell>>,
Dec 18 01:55:02.896 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Dec 18 01:55:02.896 INFO [stderr] 
Dec 18 01:55:02.896 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 01:55:02.896 INFO [stderr]   --> src/main.rs:36:5
Dec 18 01:55:02.896 INFO [stderr]    |
Dec 18 01:55:02.896 INFO [stderr] 36 |     file.read_to_string(&mut contents);
Dec 18 01:55:02.896 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 01:55:02.896 INFO [stderr]    |
Dec 18 01:55:02.896 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 01:55:02.896 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 01:55:02.896 INFO [stderr] 
Dec 18 01:55:03.148 INFO [stderr] warning: unused variable: `grid`
Dec 18 01:55:03.148 INFO [stderr]   --> src/main.rs:82:9
Dec 18 01:55:03.149 INFO [stderr]    |
Dec 18 01:55:03.149 INFO [stderr] 82 |     let grid = match read_grid(&path) {
Dec 18 01:55:03.149 INFO [stderr]    |         ^^^^ help: consider using `_grid` instead
Dec 18 01:55:03.149 INFO [stderr]    |
Dec 18 01:55:03.149 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 01:55:03.149 INFO [stderr] 
Dec 18 01:55:03.149 INFO [stderr] warning: field is never used: `fixed`
Dec 18 01:55:03.149 INFO [stderr]  --> src/main.rs:9:5
Dec 18 01:55:03.149 INFO [stderr]   |
Dec 18 01:55:03.149 INFO [stderr] 9 |     fixed: bool,
Dec 18 01:55:03.149 INFO [stderr]   |     ^^^^^^^^^^^
Dec 18 01:55:03.149 INFO [stderr]   |
Dec 18 01:55:03.149 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 18 01:55:03.149 INFO [stderr] 
Dec 18 01:55:03.149 INFO [stderr] warning: field is never used: `val`
Dec 18 01:55:03.149 INFO [stderr]   --> src/main.rs:10:5
Dec 18 01:55:03.149 INFO [stderr]    |
Dec 18 01:55:03.149 INFO [stderr] 10 |     val: i8,
Dec 18 01:55:03.149 INFO [stderr]    |     ^^^^^^^
Dec 18 01:55:03.149 INFO [stderr] 
Dec 18 01:55:03.149 INFO [stderr] warning: field is never used: `size`
Dec 18 01:55:03.150 INFO [stderr]   --> src/main.rs:14:5
Dec 18 01:55:03.150 INFO [stderr]    |
Dec 18 01:55:03.150 INFO [stderr] 14 |     size: i8,
Dec 18 01:55:03.150 INFO [stderr]    |     ^^^^^^^^
Dec 18 01:55:03.150 INFO [stderr] 
Dec 18 01:55:03.150 INFO [stderr] warning: field is never used: `block_size`
Dec 18 01:55:03.150 INFO [stderr]   --> src/main.rs:15:5
Dec 18 01:55:03.150 INFO [stderr]    |
Dec 18 01:55:03.150 INFO [stderr] 15 |     block_size: i8,
Dec 18 01:55:03.150 INFO [stderr]    |     ^^^^^^^^^^^^^^
Dec 18 01:55:03.150 INFO [stderr] 
Dec 18 01:55:03.150 INFO [stderr] warning: field is never used: `data`
Dec 18 01:55:03.150 INFO [stderr]   --> src/main.rs:16:5
Dec 18 01:55:03.150 INFO [stderr]    |
Dec 18 01:55:03.150 INFO [stderr] 16 |     data: Vec<Vec<Cell>>,
Dec 18 01:55:03.150 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Dec 18 01:55:03.150 INFO [stderr] 
Dec 18 01:55:03.157 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 01:55:03.158 INFO [stderr]   --> src/main.rs:36:5
Dec 18 01:55:03.158 INFO [stderr]    |
Dec 18 01:55:03.158 INFO [stderr] 36 |     file.read_to_string(&mut contents);
Dec 18 01:55:03.158 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 01:55:03.158 INFO [stderr]    |
Dec 18 01:55:03.158 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 01:55:03.158 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 01:55:03.158 INFO [stderr] 
Dec 18 01:55:03.245 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.63s
Dec 18 01:55:04.123 INFO running `"docker" "inspect" "38c7a525ea871cf94952a8dbbfd7510ef3c80cceb128b5cba4e92e97027d2132"`
Dec 18 01:55:04.244 INFO running `"docker" "rm" "-f" "38c7a525ea871cf94952a8dbbfd7510ef3c80cceb128b5cba4e92e97027d2132"`
Dec 18 01:55:04.347 INFO [stdout] 38c7a525ea871cf94952a8dbbfd7510ef3c80cceb128b5cba4e92e97027d2132